TP-Link T1500-28TC TL-SL2428 T1500-28TCUN V1 Configuration Guide - Page 94

Managing Physical Interfaces 1 Physical Interface Physical Interface 1.1 Overview Interfaces of a device are used to exchange data and interact with other network devices. Interfaces are classified into physical interfaces and logical interfaces.  Physical interfaces are the ports on the front panel or rear panel of the switch.  Logical interfaces are manually configured and do not physically exist, such as loopback interfaces and routing interfaces. This chapter introduces the configurations for physical interfaces. 1.2 Supported Features The switch supports the following features about physical interfaces: Basic Parameters You can configure port status, speed mode, duplex mode, flow control and other basic parameters for ports. Port Mirror This function allows the switch to forward packet copies of the monitored ports to a specific monitoring port. Then you can analyze the copied packets to monitor network traffic and troubleshoot network problems. Port Security You can use this feature to limit the number of MAC addresses that can be learned on each port, thus preventing the MAC address table from being exhausted by the attack packets. Port Isolation You can use this feature to restrict a specific port to send packets to only the ports in the forward-port list that you configure. Loopback Detection This function allows the switch to detect loops in the network. When a loop is detected on a port, the switch will send a trap message, generate an entry on the log file and further block the corresponding port according to your configurations. Configuration Guide 73